Nigerian Aventurine Aquamarine 0.471ct Loose Stone
Sale price¥8,800
Brazilian Sky Blue Topaz (untreated) 1.376ct loose stone
Sale price¥12,800
Brazilian Sky Blue Topaz (untreated) 2.116ct loose stone
Sale price¥15,800
Brazilian Sky Blue Topaz (untreated) 2.733ct loose stone
Sale price¥15,800
Vietnam Aquamarine 6.0mm/0.730ct Loose Stone
Sale price¥12,800
Vietnam Aquamarine 6.0mm/0.781ct Loose Stone
Sale price¥8,800
Brazilian Lepidocrocite in Quartz 0.982ct Loose Stone
Sale price¥9,800
Brazilian Lepidocrocite in Quartz 1.126ct Loose Stone
Sale price¥12,800
Brazilian Lepidocrocite in Quartz 1.352ct Loose Stone
Sale price¥12,800
Cornflower Blue Sapphire 1.210ct Loose AIGS
Sale price¥198,000
Unheated Padparadscha Sapphire from Madagascar 0.250ct Loose
Sale price¥55,800
Unheated Padparadscha Sapphire from Madagascar 0.150ct Loose
Sale price¥39,800
Unheated Padparadscha Sapphire from Madagascar 0.150ct Loose GIA
Sale price¥35,800
Violet Sapphire 4.3mm/0.328ct Loose
Sale price¥15,800
Pink sapphire 4.5mm/0.390ct loose stone
Sale price¥15,800
Purple sapphire 4mm/0.273ct loose stone
Sale price¥12,800
Yellow Sapphire 4.0mm/0.266ct Loose
Sale price¥12,800
Golden sapphire 0.269ct loose stone
Sale price¥16,800
Pink sapphire 0.271ct loose stone
Sale price¥8,800
Brazilian Morganite 4.720ct loose stone
Sale price¥98,000
Spessartine Garnet 1.040ct Loose
Sale price¥29,800
Tanzania Purple Zoisite 0.197ct Loose Stone
Sale price¥15,800
Tanzanian Mint Garnet 1.276ct Loose Stone
Sale price¥69,800
Indian Cavansite 1.171ct loose stone
Sale price¥9,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.670ct Loose Stone
Sale price¥15,800
Afghanistan Hackmanite 0.190ct loose stone
Sale price¥11,800
Madagascar Pezzottaite 4mm/0.217ct loose stone
Sale price¥7,980
[Koshu Precious Stone Cut Plusthree] Peridot 6mm/0.792ct Loose Patch
Sale price¥24,800
Indian Alexandrite Cat's Eye 0.255ct Loose Stone
Sale price¥8,800
Nigerian Cobalt Garnite 0.663ct Loose Stone
Sale price¥29,800
Montana Sapphire 0.405ct Loose (Green Sapphire)
Sale price¥9,800
Montana Sapphire 0.331ct Loose (Bi-Color Sapphire)
Sale price¥8,800
Montana Sapphire 0.228ct Loose (Yellow Sapphire)
Sale price¥7,980
Mozambique Pink Tourmaline 1.122ct Loose Stone (Contains CuO)
Sale price¥39,800
Zimbabwean Blue Apatite (UV Type) 1.019ct Loose
Sale price¥14,800
Colombian oil-free emerald 0.060ct loose stone GIA
Sale price¥65,800
Bicolor Euclase from Zimbabwe 0.033ct loose
Sale price¥28,800
Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange
Sale price¥128,000
Chinese bicolor fluorite 1.215ct loose stone
Sale price¥7,980
Colombian pyrite-mica emerald 3.208ct loose stone
Sale price¥228,000
Sri Lankan Star Sapphire 5.225ct Loose
Sale price¥98,000
Colombian Trapiche Emerald 0.291ct Loose
Sale price¥15,800
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
The fifth reprint has been decided and is now on sale at bookstores nationwide and online.
Written by KARATZ, book “Jewelry Illustrated Book”
The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.